package servlet;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class ServletContext_1 extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        ServletContext servlet  = getServletConfig().getServletContext();
        System.out.println("赋值全="+servlet.getAttribute("key"));
        System.out.println(servlet);
        servlet.setAttribute("key","value");
        System.out.println("HttpServlet.context="+servlet.getAttribute("key"));
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    }
}
